Ahmad, Harith and Kahar, Nor Hidayah Abdul and Yusoff, Norazriena and Reduan, Siti Aisyah (2021) Thulium-holmium doped fiber laser mode-locking with hafnium disulfide (HfS2) coated on D-shaped fiber. Optik, 246. ISSN 0030-4026, DOI https://doi.org/10.1016/j.ijleo.2021.167785.
Full text not available from this repository.Abstract
The performance of hafnium disulfide (HfS2) was demonstrated in this study to generate a modelocked pulse in a thulium-holmium doped fiber laser (THDFL). The drop-cast method was used to deposit HfS2 solution onto a D-shaped single-mode optical fiber. The fabricated D-shaped fiber had a modulation depth and saturation intensity of 12.3% and 7.53 MW/cm2, respectively, according to nonlinear optical absorption measurements. The evanescent wave interaction with the HfS2 based SA embedded on a D-shaped optical fiber resulted in a mode-locked pulse at a pump power of 208.6 mW with a central wavelength and pulse duration of 1916.29 nm and 1.509 ps, respectively. Meanwhile, raising the pump power to 208.6 mW results in a repetition rate of 11.10 MHz. The output shows a stable mode-locked THDFL pulse with a signal to noise ratio (SNR) of around 75.74 dB. Overall, this research focuses on the potential of HfS2 used as SA coated on a D-shaped optical fiber for the generation of short pulses in a 2 mu m band region.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya[RK021-2019], Universiti Malaya[TOP100PRC], Universiti Malaya[RU002-2020], Ministry of Education, Malaysia[HiCoE Phase II (PRC-2014)] |
| Uncontrolled Keywords: | Saturable absorber; D-shaped fiber; Hafnium disulfide; Mode-locking; Thulium-holmium doped fiber laser |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 15 Apr 2022 01:50 |
| Last Modified: | 15 Apr 2022 01:50 |
| URI: | http://eprints.um.edu.my/id/eprint/26712 |
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